Thompson Lake

Thompson Lake is a stone dam located in Oxford County, Maine, built in 1800. It carries a Low hazard potential classification.

About Thompson Lake

The primary purpose of Thompson Lake is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Oxford (local government). It impounds the Thompson Lake.

The dam stands 13 feet tall and stretches 35 feet across, creates a reservoir covering 4,224 acres, has a maximum storage capacity of 29,980 acre-feet, and collects water from a drainage area of 46 square miles. Completed in 1800, the structure is one of the older dams in the region, with over a century and a half of service.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 03/24/2009. That was over 17 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMaine
CountyOxford
River/StreamThompson Lake
Coordinates44.13167, -70.49500

Physical Characteristics

Dam TypeStone
NID Height13 ft
Dam Height13 ft
Dam Length35 ft
Year Completed1800 (226 years old)

Storage & Hydraulics

NID Storage29,980 acre-ft
Max Storage29,980 acre-ft
Normal Storage21,800 acre-ft
Surface Area4,224 acres
Drainage Area46 sq mi

Ownership & Safety

PurposeHydroelectric
OwnerOxford
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection03/24/2009
Emergency Action PlanNot Required

Identifiers

NID IDME00016
Federal IDME00016
More InfoState Dam Safety Program

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